<div class="weui_search_bar" id="search_bar">
  <form class="weui_search_outer">
    <div class="weui_search_inner">
      <i class="weui_icon_search"></i>
      <input type="search" class="weui_search_input" id="search_input" placeholder="搜索" required/>
      <a href="javascript:" class="weui_icon_clear" id="search_clear"></a>
    </div>
    <label for="search_input" class="weui_search_text" id="search_text">
      <i class="weui_icon_search"></i>
      <span>搜索</span>
    </label>
  </form>
  <a href="javascript:" class="weui_search_cancel" id="search_cancel">取消</a>
</div>